Abstract
Organic solar cells require suitable anode surface modifiers in order to selectively collect positive charge carriers and improve device performance. We employ a nickel metal organic ink precursor to fabricate NiO hole transport layers on indium tin oxide anodes. This solution deposited NiO annealed at 250 °C and plasma treated, achieves similar OPV device results reported with NiO films from PLD as well as PEDOT:PSS. We demonstrate a tunable work function by post-processing the NiO with an O2-plasma surface treatment of varied power and time. We find that plasma treatment is necessary for optimal device performance. Optimal devices utilizing a solution deposited NiO hole transport layer show lower series resistance and increased fill factor when compared to solar cells with PEDOT:PSS.
Original language | American English |
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Pages (from-to) | 1414-1418 |
Number of pages | 5 |
Journal | Organic Electronics |
Volume | 11 |
Issue number | 8 |
DOIs | |
State | Published - 2010 |
NREL Publication Number
- NREL/JA-520-49285
Keywords
- Anode surface modifier
- Hole transport layer
- Nickel oxide
- NiO
- Organic solar cells
- PEDOT:PSS